global Km A1 A2 a1 a2

%**************************************
     Km = 5*4.6;       % cm^3/s*V
     g = 981;        % cm/s^2
% Upper Tank:
     a1 = pi*(0.47625/2)^2; % cm^2      
     A1 = pi*(4.445/2)^2; % cm^2
     L1o = 15;

% Lower Tank:
     a2 = pi*(0.47625/2)^2; % cm^2      
     %a2 = pi*(0.49625/2)^2; % cm^2      
     A2 = pi*(4.445/2)^2; % cm^2
     L2o = 15;

%**************************************
